The phenomenon of the location of this value changing from a normally equivalent other value is called thermal hysteresis. A eutectic point becomes the lowest value at which this point can be reached for systems that undergo 
The phenomenon of the location of this value changing from a normally equivalent other value is called thermal hysteresis. A eutectic point becomes the lowest value at which this point can be reached for systems that undergo a depression of this value. That depression can be caused by the addition of another compound to a pure solvent, such as adding salt to water or ice. For 10 points, name this measure of the point at which the liquid and solid phases are in equilibrium, which for water occurs at 32 degrees Fahrenheit.
The phenomenon of the location of this value changing from a normally equivalent other value is called thermal hysteresis.
{freezing} point [or {crystallization} point; or {melting} point]